Geospatial Analysis of Soil Erosion Susceptibility and Causative Factors in Anambra State, South East, Nigeria

Romanus Udegbunam Ayadiuno, Dominic Chukwuka Ndulue, Chinemelu Cosmas Ndichie, Arinze Tagbo Mozie, Philip O. Phil-Eze and Anthony Chukwuemeka Onyekwelu
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Romanus Udegbunam Ayadiuno: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria
Dominic Chukwuka Ndulue: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria
Chinemelu Cosmas Ndichie: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria
Arinze Tagbo Mozie: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria
Philip O. Phil-Eze: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria
Anthony Chukwuemeka Onyekwelu: Department of Geography, University of Nigeria, Nsukka Enugu State, Nigeria

Scientific Review, 2022, vol. 8, issue 1, 5-32

Abstract: Land degradation is a function of soil erosion leading to soil loss and reduction in crop productivity as well as other socio-economic activities. The menace of soil erosion is challenging due to diverse factors including advertent and inadvertent anthropogenic activities. This study looks at soil erosion susceptibility and causative factors in Anambra State, both static and dynamic with the intent of identifying them, investigating spatial variability of soil loss, relate erodibility to soil properties and causative factors to soil erosion. Eight (8) prominent causative factors (CFs), were identified. These causative factors (CFs) were analyzed using ArcGIS 10.2. Sixty (60) soil samples were extracted randomly, analyzed, and tested. The study identified CFs such as Drainage Density, Erosion Density, Lineament Density, Slope Length, Land Surface Temperature, and Rainfall Erosivity, which contribute to Soil Erodibility (K - Factor). Land Surface Temperature, Soil Moisture Index, Rainfall Erosivity, and Normalized Difference Vegetation Index contributed to the loss of 8.97 ton/ha/yr, 9.1288 ton/ha/yr, 1,1134.7 ton/ha/yr, and 0.245 ton/ha/yr respectively to erosion in Anambra State. Conclusively, the dynamic causative factors influence soil susceptibility and trigger erosion in the State.

Keywords: Geospatial; Causative factors; Soil erosion; Susceptibility; Anambra. (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:arp:srarsr:2022:p:5-32

DOI: 10.32861/sr.81.5.32

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